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Note 11 - Revenue Recognition (Tables)
3 Months Ended
Jan. 31, 2022
Notes Tables  
Revenue from External Customers by Geographic Areas [Table Text Block]
  

Three months ended

 
  

January 31,

 
  

2022

  

2021

 

United States

 $12,144,379  $9,703,610 

Outside the United States

  2,295,916   2,172,963 

Total net sales

 $14,440,295  $11,876,573